Hiho, hier einige nützliche Links zum o.g. Thema – enjoy:

Stefan Riek: http://citrix.stefanriek.de/citrix/howto-load-balance-tftp-with-your-citrix-netscaler/
Nick Rintalan: /blogs/2011/05/02/load-balancing-tftp-anything-but-trivial/
Holger Fuessler: /blogs/2010/11/11/redundancy-and-scalability-for-tftp-using-netscaler-direct-server-return/
Holger Fuessler: /blogs/2011/01/06/monitoring-tftp-with-citrix-netscaler-revisited-pvs-edition/

How to Configure Direct Server Return:  http://support.citrix.com/article/CTX110501
Step by step to HA for PVS:   http://support.citrix.com/article/CTX123245
Implementation Guide – HA for TFTP:  http://support.citrix.com/article/CTX131954

//mjg